DM74ALS157M

Mounting Style : SMD/SMT
Package / Case : SOIC-16
Supply Voltage - Max : 5.5 V
Supply Voltage - Min : 4.5 V
Number of Bits : 4
Packaging : Tube
Product : Decoders, Encoders, Multiplexers & Demultiplexers
Maximum Operating Temperature : + 70 C
Number of Lines (Input / Output) : 1 / 2
Propagation Delay Time : 14 ns at 4.5 V to 5.5 V
Logic Family : 74ALS


Features:

·  Switching specifications at 50 pF
·  Switching specifications guaranteed over full temperature and VCC range
·  Advanced oxide-isolated, ion-implanted Schottky TTL process
·  Functionally and pin for pin compatible with Schottky
  and low power Schottky TTL counterpart
·  Improved AC performance over Schottky and low power
  Schottky counterparts
·  Expand any data input point
·  Multiplex dual data buses
·  General four functions of two variables (one variable is common)
·  Source programmable counters


Pinout




Specifications

Supply Voltage........................................................... 7V
Input Voltage .............................................................7V
Operating Free Air Temperature Range.... 0°C to +70°C
Storage Temperature Range ...............-65°C to +150°C
Note 1: The "Absolute Maximum Ratings" are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The "Recommended Operating Conditions" table will define the conditions
for actual device operation


Description

These DM74ALS157M data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four output gates. A separate strobe input is provided. A 4-bit word is selected from one of two sources and is routed to the four outputs. The DM74ALS157M presents true data whereas the ALS158 presents inverted data to minimize propagation delay time.